Drilling-machine.



W. F. BARNES. DxILLugn nonlln.

W. F. BARNES. DRILLINO MACHINE APPIJUZAIUOH YILED 061122. W00* 8 wauw l 4 fat, aww.

l. P. BARNES. nullo noms.

l APHJOATIOI nl. 001. Il. IMI. M584 mamas@ W. P. BARNES,

DIILLIIG IAOHIIIB.

nruonxol nun oor. an. ma.

948,584. Pand m 8.1910. l llllfl-llll'l C.

w. r. BARNES. DIILLIIG IUHIIE, APPLUTIOI FILED 00T. II. "03.

948,584, fatentd Feb. 8, 1916.

idg 75- W. P. BARNES. DBILLUIQ IAUEIIE. umonxol nun 001.. 1m.

948,584.' Patented Feb.`s,1910.

n lulu-lun s.

@Lg I6.

ultim/Www vflm'wL-LWI (6,/ n A f LLM/.fm @wn LM.

W. P. BARNES. DBILLIRG ILOFIHB.

union-lol un our. u. 1m.

hunted ran 8,1910.

D IlllfI-lllll D.

i return of the tool support.

UNITEIS STATES PATENT comme.

'ml l'. am. 0l IOCKFOI-D, ILLINOIS, AMXGNOB T0 W. I. l JOHN BIIJIII CDHPANY, 0F IOCKFORD. ILLINOIS, A CORPORATION 0! ILLINQIB.

DBILLING'IACIIINE.

Imitation of Lettera Intent.

liitented Feb. 8, 19.10.

Appltenttoii Med October n.100.. lerlll lo. 389.996.

To a whom it may concern:

lle it known thut l, Winni/M F. Burma, u citizen of the United States, residing .at Rockford, in the count of Winnebago and Suite of Illinois, have invented certain new und useful Improvements in Drilling-Miieliines, of which the following is a Hpceilii-,iition.

This invention relates to improvements in machines in which the tool support is ca able of a lengthwise movement in order that the tool muy be quickly presented to the worlt, a slow movement imparted to the tool while the work iii being done, und a quick return of the tool to its starting position.

The object, of this invention is to provide nieiiin-i whei'eli the dill'ercnt movements uro independent of euch other, tlnit is, one must be completed before another is commenced.

In the accompanying drawings, Figure l is a front elevation showin the tool support in its lowest position and t ie parts in n position to be shifted to begin the return move inciitlof the tool support. Fig. 2 is ii partial lan view. Fig. 3 is a vertical section on t otted line a Fig. 4. Fig. 4 is a vertical eentral section through the clutches und through the gearing on the feed shaft. Fig. 5 is an inner face repi'twntiitoii of the inner mul upper portion of tlicdripping device. Fig. in it iwct ion on dotted line b b Fig. 4. Fig. 7 iu an iooinetrical' representation of the device for determining tlio distance of the quick advance of the tool. Fig. S is iin 'n.onietrieal re resentiition of the device for determining tie distance the tool will vontinue-to work. Fig. 9 in' un iiio'metiiciil re ircsontittion of the device for stoppingtic Figmio, ii, i2 und 18 are resentations of the tripping devices in their various positions. Fig. 14 iii a vertical aection of the tool support and its driving pinion. Fig. 15 is un inner face representation with the parts iii their normal positions. Fig?. 1t. 17 and 18 are representations of the storting lever und the piiits o ieratcd b it. Fig. 1t! in n partial section o the mec iunisni for giving ditlerent Speeds to the quick advance and return movement. Fig. .'0 is on isonietrleal repi'eaentatlon of the ai'iu QS. lower portion .'11 of the hitch und i'pd Uli. Fig. 21 is an isoinetricul representation of the liiteli 107. Fig. 22 is un isoiiiet- `tapiinll will nlso be rotated.

rieiil representation of the latch 105. Fig. 23 is an isonietiiciil reprcientntion of .the storting lever.

My improvements ure shown applied to what. is known ns u .drill remi, Suid drill press comprising thc muin rame l supporting the miiin driving shaft. 2, and the reciprocating sleeve 3.

The. bevel geurs 4 und 5 form a oonnectio between the iiiaiii driving shaft and drin'l pindle 5 ciirried by the sleeve, and as th riving s iaft is constant-ly rotated, the drill A bolt connection with the coneI pulley 6 mounted on the main driving shiift will impart a rotary movement to the shaft. The sleeve has a toothed ruck 7 movable with it. A feed fibnft 8 is supported by the main frame and sup rts ii inion 9 which meshes with the toot icd rnc A hund wheel 10 has a connection with one end of the feed shaft. A bracket is supported by the. main frame and comprises the -two vertical bars 11 and 12 lower bar 13 and top lnir 14. The vertical bur 12 ia supported by ii hub 15 extendiii from the main freine. An arm 16 exten s from the upper bui' l-t, und limi ii connection with the rod 1T extending from the main fruiiie.

'llie feed uhiift 8 luis a heui'ingin the vertieul hui' il of the brochet. A shell. 1B is :supported by the twy vertical bars `11 and 1'2, and is located some distance above the feed shaft 8 und parallel therewith. To the feed shaft 8 is pinned a spur-toothed pinion lil, also a worin wheel 20.

'llie lower bar `13 of the bracket is formed with a horizontal rectangular groove-way 21 within which is lotod a support 22 pivoted at the point 221 between the ctms 24 extending rearward from the lower bnr 13. This support bus ii lengthwise central opening within which is located n shaft 25. o the center portion of this sluif t 25 is` secured a worin 26, und to one end of this sliiift is Secured ii beveled timtlied-wheel 27. AS the worm Q6 is cup mrted iii n pivotal iiiiinuei'. it enn he into engagement with the worin wheel .10 liv menne now to bc described and cunbo heh iii auch engagement. From one end of the snp rt 22 extends un iuiii 98 and is loeuted u Tight ongles thereto. From the vertical boi" 12 of the liracketiextends ii loo ieu

' lengtbwine direction of the shaft supporting the tool, the tot 'wor lng 21| tn which is pivoted n lnteb compri.- ing nn upper end Jltl. n louer hooked end 1li and n bundle 3;. -prin v itil is located between tbe lower bnr lil o the bracket. und thil lower booked cud of the latch.

When the worin ".tti is moved into engngetn ut with the worm-wheel 20. the arm 2x will he ruined until the hooked lower end 3l of tbc bitch ree-viven tbc lower edge of the arm 28, as shown in Fig. tl, tberebl" holding the worm in engagement with tie wormwhwl.

lbc arm ttt u poma a utmlnr bearing 1H within which in ocnted a nhnft tlf. 'lo the lower end of thin Mba ft in secured n beveledtootlled inion 5W held in mesh with tht` bevcledtoot ned wheel Q7. 'lo the upper end of the shaft 35 in mured a miter tmtbed-wbeel 37. A shaft 38 is secured in suitable bearings; to one end of which is secured a miter toothed-wheel 39 meshing with the miter toothed-wheel 37. 'lo the other end of this ahaft 38 is secured a plnte 40 having a series of concentric rings of teeth 4l.

'lo the main' drivin shaft 2 is secured a toothed pinion 42. frnme 43 is loosely mounted on the drivingmhaft 2, and in intended to be nu ported by the main-frame, the connection lbeing omitted in order to more clearly show other arts, und supports tt toothed pinion 44, uni a haft 45.' 'lhin abaft 45 han n toothed pinion 41' necured to it which meshes with the toothed pinion 44. and it in turn meshes with the tmthcd-pin ion 42, thereby forming a drivin v connection between the main driving sha t t.' and the shaft. 45. The sbaft 45 ls provided with a lengthwise groove 47, a toothed-pinion 48 han a feather connection with the oove in order that it may be moved bodiiti in the no that it may be placed in engagement. with the varions concentric rings of teeth 4t.

Thun far described, u rotury movement is imparted to the drill spindle by the gear connection with. the muin drivin shaft. 2.

ily reason of the geur eonneetmn between the main driving shuft und worm-wheel 20, when the worm ti is in enga ment with the worm-wheel, a connection wi l be formed between the main driving shaft and feed ahaft which will rotate it, and the toothed-pinion 9 .connected therewith being in enga ment with the toothed rack 7, the tooth rack will be moved downward toward the work, and as the toothed rack is a port of the sleeve In nome of the figures of the drnwingn, the gulring is covered,I but in other figures the grlin is shown.

'lo tie shaft t8 is inned n spm'dtxithedwheel 49 which meshes with the toothedplnlon lil pinned lo tho feed sbnlt H. 'lhiet lptlr-tootbed-whwl 4!! hun n tlnngc ."tt exwill engage the tending'from it. Upon thc shaft l?. nrc loosely tnonntcd two lwvcled-lootln-d wht-els ."l und 52 fneing euch other.

A `Qbnft 53 is `s'npiorted in bearings :'4 und 55 nml is rotnted by a geul' connection with the nhnft 35. snid geur connection conn pris-sing two -xpnr-toothed-wheels ."tl und 57 tixedlv connected to the nbnft fl. A slmft .'H in nu ported in bearings Mt and to one end of t mi shaft in tixedly connected n beveled-tiaitlnd-wlwcl tltt which meshes willi u lwveled-tcmthedwheel ttt wurm! to the shaft tto. 'Iwo npurtmtluthwheels till und ytll are lomwly mounted on the shaft 5H nud inenh with the spur-toothed-wheels ntl und 57. A sliding clutch member ttt bus u connection with the shaft ."tt nml rotates therewith. The sliding clutch member can be placed in engagement with either of the shpur-tmthed-wbeels 62 and 63, and as the wheels ure of different diameters, different. speeds will be transmitted to tho shaft 53. 'l'hin nhaft .'53 han a beveled tmthed-pinion 0H secured to it which meshes with the beveled tmthed-whocls 5l and 52 and which is constantly rotuted, thereby imparting a rotnry movement to one of the beveled toothedwheels in one direction and n rotary movement to the other beveled toothed-wheel in the opposite. direction.

0n tho shaft 1H between the. beveled tiuitbed-wbeeln lil and 52 in located a clutch hnving the lnaw-toothed face tlf and tltl aml cin-umferential groove 67. This .clutch has n sliding connection with the shaft 18 by the feather 68 engaging a groove in the clutch.

From the upper bar 14 of the bracket de nds an arln (li) hnving a transverse o )enmg within which is located a short shaft 70. To one end of this shaft ia pinned an arm having a depending end' 7l provided `with a stud 72 entering the facial groove .shaft 70 is pinned a bell-crank lever having one branch 75 depending from the shaft, and rovided with a atud 76 entering the facia groove' 67 of the clutch, and the other branch 77 extendin at aubatantially right angles to tbe brano 75. Thil branch 77 supports three studs 78, 79 and 80, made ad- 'notable in the direction of their length, and liehll when ndjnsted b v a net screw for each stu( From the free end of the branch 77 depends un arm 8l to tbe lower end of which is cmmeeted n. spiral spring 82, the lower end of the spring being mnnected to a stamml' tn u't of t'he machine. From the lower end of the arm 8l extends u wing 83,

U in manner to n n projeeticn icon nl. Fim 7, 8 and 9. 'llie ring chown ut Fig. 7 ilaplit, und itl ends nre connected by thc screw 88. end hy means of this screw thc ring.: ia clamped in engagement with the llnngc permit its iidjuntiiienn vii-- olmfrntially round the lhtnge. This ring nl a cammirfiico 89 projecting beyond one of ita edges, and the eaiii surface him o portbn 90 extending Itownrd the critter of l the ring. The ring Htl is chunpcd in connection with 4the flange o0 hy the screw lll und haa a cam surfiice 92 extending troni its im The ring87 is clamped in connection lwith the llan 50 by the screw 93 und has extending from its foce. 'lhe ring 87 in clamped in connection with the flange eo that its projection 91 will engage the upper end of the hitch. 'lhe ring 88 is ao located in connection with the flange ,o that the cam-surfiice 92 will engage t.

iitud 78, and the ring is located in connection with the tlenge 50 at its outer edge.

The bar 12 df the brtcket has its upper portion provided with e rectangullr opening 95.

To the free end of the erm 2R is connected a rod 90 by n :crew 97 located in the elongated alot 98 of the rod. A spring 99 has one end connected to the rod 90, and its other end to the arm 28. To the u per end ,o of the rod 90 is secured a floating og conipriaing the front plate 100, a rear plete 10|, and a ltem 102 connecting theplates. 'l `lie Item il located in the rectangular opening in the up r portion of the lmr 12. The

u' teer plete l 1 il located beiieiitli the studs 79 and 80 de nding from the branch 77 of the bell crnn lever.

To the ber 13 of the bracket is connected e stud 108 upon which is pivotiilly mounted q a ber-104, a ciitch 105, und e starting lever .00. The bar 104 supports a latch 107 in ii ivotal manner. The catch 105 hns ii stud 08 elttending from its side facing the stnrting lever. A coiled spring 109 has one end to a )rejection 110 extending from the latch 10i and its other end is cunnected to a projection 111 extending from the catch 10o. 'lhe stel-ting lever 100 huit two canioiurtiices 112 and 113. An arm 114 timtlicd-\\'liccln .'il und .'i.' Iiind fi'cc of liotlt wheels.

'lhe operiition it.' its follows: 'l`lic liirting lcvcr 100 is ruined from thc position shown in Fig. l-'i to tliiii `liowii in Fig. lli which will conse the coni .Miii'tiiec 11:. to cngiigc thilower end of the rod titi und riiiwiI it into the position shown nl Fig. lt'. llefore thc etnit- Y ing lover i.i moved, the culi-li 10.', will unguge ii projection llthfviuoding troni thc iii'in 'All thereby preventing tht` u iwiird movement ol' thc iirin which will hoh the worlii .'ti out of engen-nient, with the worin-wheel 20 thereby iolding tlic work-feed out ol' uction. As the rod 90 moves upwiird. the iipiriil spring titl will he extended sulliciently toreise the iirni Q8 nl'tcr it is rolt-used, thereby throwing the work-feed into nction. 'l'hc upward movement of the rod 90 will eleviic the4 lloiiting dog. The Stud 79 of the helleriink resting on the. iippcr edge of the reiii'*l plate 101 of tlic tlonting dog forms u count-c` 9 port ii rotary movement to the spur-toothedwheel I19 throu h thc pinion llt to the l'ccdi-ihiift H, und tii'oiigh the pinion 0 to the toothed-ruck 'i' of the sleeve in n downward dirmtion. The gein' cniiiimtion with the sleeve is such tlilt the sleeve -will have e. quick downward movement. 'l'lie riiiiiiny movement of the orni 7i' of thc hell-craint will pull u i on thc rod lli und moi-c the hor 1011 .siillicciitly to pci-init thc hitch 107 to engage the stud 10B 'extending from the cutch 105 as shown itt Fig. tti, As the toothed-wheel 49 is given u iin-tial' rotation during thc. quick downward movement of the tool support, the rings' 85, 80 und 8T will bc carried with it. The ring 85 is adjusted in connection with the than 50 of the tootln-d-ii'hccl so thut whcu t ie tool holder hns descended the proper dintunce, the ciiin o extendx from the rear ot' the erin 81 nud its siii-[tice Htl of the ring will engin 'e the rein' free end il provided willi it vertically nrplitte 101 of the tlonting dog un move the ranged opening. A rod 115 has its ower upper end of the Ilontin dog so that the end pxvotally connected with the free end of rear plate of the floating do r will move free Vthe bar 104, en d it.: upper end pinete-s of the stud 79 thereby allowing the erin 77 66 thlOUgh the. opening in the arm 1 1-1. The of the bell-crank to descend until the stud 12e -uppeiagortion of the rod 115 is screw- 80 rests in contact with the upper edge of three and a. nut 116 isplaced beneath the reiir plate 101 of vthe limiting do as the arm 114. A Ipring 1.17 is laced around shown at Fig. 12. This movement o the the rod aboye the arm 114' an e nut 118 is bell-crank will move the clutch located be- O0 plld lbOVe the lpttng. tween the lx'vel-toothetl-wheels 5l und 52 125 In Figa. 2, 8 4, 5 and 0 the parts are in free of the beveled-tootlied-wheel .'il which the ltionl t ey occupy when the sleeve. will break the drivin r connection with the and rilll indie Ire elevated. The tool und ttxithed-wht-cl .'51 tint to thc quick delllobe -toothed i151 and 52 nre rotntacending movement of t ic sleeve. The

Il ing idly und the c utch between the bevi-l 1.30

dropping of the erin 77 of the lieti-crunk -of the arm 28will carry the will fori-e the liar 10i down carrying thc lait-li 10T with it. As the lair i 107 is in viigagcnieiit with the atiid 108 of the catrli 105, the downward movement of the latch will force the catch from its engagement with the rojection 110 extending from the arm 28, t iereby permitting the spring 90 to exert its force on the arm 28, and raise it which will throw thc worm '20 into en'za;I ment with the worm-wheel and will held elevated by the lower hooked end 31 of the latcli seing under the bar. The tingcr 121 exten ing from the latch 107 will come in contact with the screw 122 supported on a tixed part of the frame and t e further downward movement of the bar 104 will free the latch of its engagement with thc stud 108 of the catch. t will tlius be obvioiis that the quick advancing mechanism will he thrown out of operation prior to the time the working feed means is thrown into operation. The sleeve will ca the tool downward slowly, and through its connection with tlie worm-wheel 20, will move the toothed-wheel 49 slowl in the same direction it was moving whi e a quick movement was being imparted tc the tool support.

When the tool has finished its work the projection 94 carried b the ring 87 will engage the uppe'rend 30 the latch and move t e latch suiliciently to release its lower hooked end 31 from engagement with thc arm 28, thereby permitting the arm 28 to d carrying the worm 30 with it, which wil 'disenga the worm from the wormwheel a stop the slow downward movement. of the tool. This droppin movement oating dog with it, therebrmittin the bell-crank to move, which wil move tie clutch located between the bevel-toothed-wheela 51 and 52 into enga ent with the teeth 123 of the bevel-toot -wheel 52, thereby fonning a connection between the tootlied-wheel 041 and the sleeve, which will move the toothedwheel 51 in a direction opposite to thatqat which it was previously moving as shown atA Fig. 18. This movement of the toothedwheel 51 will, through thev r connection with the sleeve impai't a ui return movement to the sleeve and dri l-apindle until the cain aurface92of the ringacomes in contact with the stud 78, which will move the bellcrapk, and through it move the clutch from engagenient with the bevel-tootlicd-wheel 52 into a position where it will be free of both bevel-toothed-wheela 51 and 52 and will remain at nat. Upon the last movement beton imparted to the bell-crank tlie stud 78 wi be elevated siitllciently to permit tlie'spring 127 shown iii Fig. 1 to move the tloating do latcrally no thnt the rear plate 101 the'rco will i'cmiiiii ut vost lient-'ath the stud 79, when nll pui-t1. will iii-mimic their normal itions. The spring 82 is viiiployt'fl to move t ie cliitcli t ie work-feed from its viigagcmvnt willi tlm bevel-toothedwlioel 5l into enga ment with the bevel toothed-wheel 52. lic cam surface 00 on tlie rin will enga the screw 84 and move tic bell-crank, siould the spring 82 fail to move it. By this arran ment the tool is given a quick advance to t e work a slow movement while doin its work, and a quick return after the wogk pleted. .It is only necesa to raise up on the starting lever 106 to start the mechanism in operation, when the various movements are automatically accomplished. y pre.- ing down on thel handle 82 extending from the latch, the sleeve can be instantly returned to its normal or startin position.

To the top bar 14 of t e bracket is pivoted a lever 124 having a cam-notch 125 in its front edge. By means of this lever the Brojection 74 extending from the arm 78 wi be received in the cam-notch which will hold the slidin clutch free of both wheels, 5l and 52 when t e sleeve and drill-spindle can be reci rocated by means of the hand wheel 10.

e set-screw 126 limits the downward movement of the worm support.

Should the spring 09 become broken or lose its elasticity so that it. would not move the worm titl into an ent with the worm-wheel 0 to start t e work-feed,

has been comoperator ran move the starting lever so that t ic cam surface 113 will be brought inst the under, face of the bar 28 and rails it after ythe-catch has released it, until the lower hooked eiid 31 of the latch pasea under the bar, 'which will hold the bar and worm elevated during the time the workfeed is in operation. v

lt will be noticed that the quick-advancing mechanism does not throw into ldion the work-feed, but simply removes a atcb which holds the work-feed out of adiom and after the latch has become disengaged,

n spring throws t-he .work-feed into action..

If the spring fails to work, the work-feed would not become active unless the operator raised tlie starting lever sulicie'ntly to throw the worm into enga rment with the wormwhecl. It'will furt cr be noticed that the iiick'advancii'i mechanism ceaaea'befon gina, which must be the case because both of auch feeds operate on the feed shaft ptositively through dierent means. It will iirther be noticed that the quick advancing mechanism, work-feed mechanimi, a'nd quick return mechanism are driven from thesame shaft that rotates the driilindie. it will further be noticed that t e uick advancingv mechanism', workfeed lmet; anism and quick return mechanism are positively driven so that no opportunity is olered for slippage, and when the quick-advancingI mec apism, work feed mechanism and qiiick'return mechanism are inactive no masts of power is'taking place i aan i u ,with the exception of idly turning the gearing. Aa the quick advancing mechanism ceuaea before the work-feed mcchaniam bona they act auccesaivcly which would not the cane if both were in operation at the same time, in that instance they would act con'ointly.

he ex reazione quickfced: workfeed an quick return used throughout the specification and claims denote the advance downward movement nt the drillmpiudle to the work, the further downward movenient of the drill-spindle while the tool ia doing its work, and t c return movement of thc drill-spindlc to its starting iosition. 'lhe work feed runs at. considera ilo less speed than the quick-feed and-the quick return, and the word quick is used with this uuderstanding.

While in the drawings` I have shown m improvements in a drilling machine in whie a quick return movement is im arted to the drill spindle l have not decine it necessary to embody auch element in moet of the claims as my improvements are complete without auch movement and it would only be adding an old movement to my improvement without .in any manner changing the nature of my improvements.

I claim as.my invention.

l. In a drilling machine, in combination a rotatable and lon -itudinally movable drill spindle, a quick at vancing' mechanism and work feed mechanism for successively advancing the spindle in the saine direction, means for startin f the quick advancing mechanism, means or holding the work feed mechanism out of action during thc quick advancing movement of the spindle, antomatic means for first stopping the quick ndvancin mechanism and afterward releasing sai holding means to icrinit the work toad mechanism to be plaem into action.

2. ln a drilling machine. in combination' a rotatable and longitudinally movable drill spindle, a quick advancing mechanism and work feed mechanism for successively advancing the spindle, means for startin v the quick advancin mechanism, means for iolding the work fizied mechanism out of action during the quick advancing movement of the spindle, means for stopping the quick advancing mechanism, means controlled byK said stop ing means for throwing the wor feed nicclianism into action after the stopping of the quick advancing mechanism, and `nicaia for stopping the work feed mechanis 3. dn a drilling machine. in combination, a rotatable and lon fitudinally movable drill spind 'n a quick a vancing mechanism and work feed mechanism for successively iidvanci ig the spindle. means for startin r the qnickadvancin v mechanism, means for iolding the work eed mechanism out of action durinp the quick advancin movement of the spind e, ineanii adapted to seperated by the quick advancing mechanism for releasing said holding means` means for stopping the puck advancing mechanism, and means iniepeiilent of t ie niek advancing mechanism for throwing t ie work feed mechanism into action after the stopping of the quick advancing mechanism. 4.V ln a drilling machine, in combination a rotatable and lon 'itudinally movable drill spindle, a quick ai vnncing mechanism and work feed mechanism for successively advancing thc spindle, means for starting the quick advancing mechanism` means for stopping the quick advancing mechanism, means controlled by thc stopping mechanism for automatically throwing the work feed mechanism into action after thc stop iing of the quick advancing mechanism, an means for stopping the work feed mechanism.

In a drilling machine, in combination a rotatable and lon itudinally movable drill spindle.. u quick iu vancing mechanism and work feed mechanism for successively advancing the spindle, means for starting the quick advancing mechanism, means for stoppingthe quickadvancing mechanism, and automatically operated means for atartin the work feed mechanism u ion cessatiohvo movement of the quick ai vancing mechanism.

o. ln a drilling machine, in combination a rotatable and loa itudinallymovable drill -spindle, a quick a vancing mechanism and work f ecd mechanism for successively iidvani-ing the spindle, means for starting the quick advancing mechanism, a hitch for holding the work feed mechanism out. 0f action during the quick advancin movement of the spindle, means controll by the quick a'dvancin mechanism for automatically opi-rating t ic latch to release and per= mit the work feed mechanism to lio placed into action, and means for stopping the quick advani .'g' mechanism.

'i'. ii a drilling machine, in combination a rotatable und loni'itudinally movabledril spindle, a quick ai vant-ing mechanism and work feed inturhanisni foi' successively ildvancing the spindle, meansI for starting the quick advancing mechanism, a hitch for holding the work feed mechanism out of action during the quick advancing movenient of the spindle, aiitoiiiiitic means for operating the latch, to release the work feed mechanism, means for stoppin the quick advancing! mechanism. automatic inc iins for throwing the work feed mechanism into ac tion whcii.i'elcascd by the latch, and means for stopping the work feed mechanism.A

H. In u drilling machine` in combination, n rotatable und lon l'iludviniilly niovulile drill spindle n feed sha t for the spindle, n worin wheel xedly connected with thc feed shaft,

n work feed meehnninn [or the upindle. in t ttltlotmtltt'ttll) Hptt'ntill ttn'smfin pmilttelt' vinding n worm tlutt n|e-|mwith the worm preventing the opt-intim o1 the nml. tml

wheel. n quiek udruneing ineehuuiwlu t'or the spindle qu-riding through the leed hhut't, menus for sturtlng the quick ndvnneing tueehnnieln. uudulenus for untomutienlly stoipntg the quu'kl ndvnneing uieehuuistn anu afterward stnrting the work feed meehwhen.

il. In n drilling nutehine. in eomhinntion. a rotutnhle and' longitudinulh.' uiovuhle drill .upiudle` n feed shnft for the spindle. two geiles tixedly eonneeted to the feed shuft. n quick udvuneing lneehnuisut for the spindle olntting through one of snid enrs. n work feed uieelutuism for the spin: le operating through the other of nid g-nrs. menus for starting the qniek ndrnneing nn-ehnnisnl. und menus for uutoluutieully stopping the quiek ndrnneiug nnwhnninnt und utterwnrd htnrtin the work feed ny-ehnnisnt.

l0. u u drilling uuwhlue. in eotnhinntion. l rotutnhle'inul longitudinully tuovuhle drill spindle. u feed l-ihnfty for the spindle, two

25 genis tixedly eouneeted to the feed shnft. n

quiek ndvnneing meehunixtn. und n quiek return lneehunisnt for the spindle. operntiug.'l through one of said venrs, u work feed meehnnslu for the, spindlle operntiug through the otller of Suid geurs. menus for Hurting the qniek ndruneing meelnxnistn. means for uutolnntienlly sto )ping the quiek ndvaneiug lneehnnimn und iter auch lwtoppngn stun-ting .the work feed lneehunism.menus for nuto luutieullv stoppin the work feed lut-elmuistu. und tneuus lin' nutonuttienlly storting the quick return lueehunism after the stoppage of tluI work feed lneelnnnsnt.

ll. lu u drilling untehine` in eoinhiuution.

40 n rotntuhle und longitudiiudly movnhle drill spindle. u quiek udvuneing meehunisln. n work feed un-ehunisln und u quie-k return mechanism for successively moving the spindle. lnennn for sturtin the niek :ulrnneing xnwhnnisiu. menus or untonmtieully stoipng the quick udvunein ineehunisln und storting the work teetlz nuwhnuimn. menus for nutotnutienlly stopping the work feed mwrlutnisut uml storting the quiek re tum nwehunism, und nutoumtienlly operon-d menus for preventing the operation Vof the work feed nieelutnism before the eolnpletion of the quiek udvuueing lueclulnimu.

l2. ln u drilling nntehine. in etnnhinntion. n rotutnhle und longitmlinnlly tnovuhle drill spindle. u feed shnft, for the spindle, two genre lixedly eonueeted with the feed shaft, u quiek ndvuneiug meehunisln for the spindle qu-riding through one of said gears, n work feed nieelutuistn for thel spindle opt-ruling through the other of :mid mr. menus for vsnorting.' the qniek mlvnuetng nwehnnhtn. Ineens for untonnttieull) stop ing the quiek ndrnntdng.nn-ehnnisin nud u ter nneh stoppuge,-tnrt|ng the work feed nu-ehmnnln,und

tuerlutuistn lu'fore the eompletion of the quiek udvuneiug lneehuutlu.

lli. lu n drilling nou-hint'. in eotnhinution. n rotutnhle und lougitudiuull) lnoruhh drill -spindle. u`feed l-huft for the spindle. two geurs tixedly eonneeted nth the feed ldmt't` u quiek ndrnnring nieehnnmni und n quiek return nnehnninni for the pindhopernting through'one ol'suid geur. u uork feed lueehnnism for the .-pindle operating through the other of uid geen. menus for -tnrting thel qniek ndvuueing xueehunism. nieuw for nutonmtieully stopping the qniek :ulvnueiug mechanism und storting the work feed meehunisnn ufter meh toppngm menus for nutolnutieully sto ping the work feed meehnninni. menno or slut-ting the qniek return nleelutnsln. und ninonnltienlly opeinted menus for positively preventing the operintion of the work feed nwehuninni during the opernt ion of the quiek ndvumfing unelutnism.

14. ln u drilling umehine. in t.'on|hinntion, n rotntuhle und longitudinully movnhle drill spindle. n feed :dntft for the spindle, two genrev lixedly eonneeted with the feed shnft, u quiek ndruneing lneehunisln for the spindle operuting through one of suid geul-s. n work feed lueelmnistn for the spindle operating through the other of Suid genrs. und menus nntoluntieull)l eontrolled h v the quit-k ndvnueing lneelulnimn for rendering the work feed tneehunisni uetiw only ufter the quick udvnneing ineehnnison link eeneed to opernte.

l5. yln n drilling tunehine. in etunhinution. n rotutuhle und lotq.5it|nlim|ll \l tnovnhle drill spindle, n feed whnt't for the drill Spindle. two geurn Iixedly eonueeted with the feed hhuft. n quit-k udvuuring ineehnnisni und n qniek return lueehuninn for the qiitnlle operuting through one of nid geni-s. n worlt feed lneehunism for the'epindle opt-ruling through tllt* other of Suid geurs. menusA ntlloluuticully operuted hy the qniek feed meehnnirun for renderin f the work feed meehnuhun netive nulliI u ter the quit-h ndvnneing meehnnislu hns eensed to opel'ule. und menuuutontutienlly opernted h v the work feed lneehnnisln for rendering the qniek return nteehnnjslu netre only ufter the work feed tueelutuHni hueeiwed to opt-rute. 16. ln n drilling nntehine. in eoinhiimtion, n rotntnlvle und longitndinnlly luolvnhle drill spindle. n feed shaft for the splndle, two grurs udnpted to rotute the shnft, n qun-k udvnneing nieehuni.-|n for the spindle oper uting through one of :uid geur, n work eed lneehnnisln for the et )indle operntinp; through the other of :uh geul-s. und nuto. mntrully operuted menu for preventing the operution of the work feed nwehnnisnt hew fore the eonipletlon of the quielt ndvnneing nwehnnieui.

l7. ln u drillingmnehine, in eondiinution,

a rotatable and longitudinally movable drill spindle, a shaft for rotating said spindle, a quick advaneimg,r nu-ehanism, a work feed mechaniam and a quick return mechanism for the a indle all driven from the name shaft, an means for changing the speed of the quick feed mwhanialn and quick return mechanism independently of the work feed mechanism.

o 18. In a drilling machine. in combination. a rotatable and lon vitudinally movable drill spindle, a quick ai vancing mechanism and work feed mechaniam for successively ad vancin the spindle. a latch for holding tlnl work eed mechanism out of action during the quick advancing movement of the, spun dlc, means for releasing;r the latch, means for stopping thc quick advancing mechanism, means adapted to he lnovcd by the operator for starting the quick advancing met-lmnism, and automatic means separate from the latch for effecting a further movement of said last-mentioned means to throw in the work feed mechani.- after the quick advnncin mechanism has ceased to o ierate.

19. n a drilling machine. in com iin'ation, a rotatable and Ion itudinally movable drill spindle. ya quick at vancing mechanism and work feed mechanism for succcsrively ndvancin the spindle, means for holdingr the work eed mechanism out of action during;r the quick advancing movement of the spin` dle..automatic means for operating the holdmg nieans to release the work feed mechaniam, means for stopping the quick advancing mechanism, and means adapted to hc moved by the operator tor starting the quick advancing nwchaniam and capable of further movement to throw in the workfecd mech.- aniam after the quick feed mechanism has ceased to operate.

20. In u drilling machine in combination, a rotatable and lon itudinally movable drill apindle, a quick a vani-ing nn-chaniam and work feed mechanism for successively advancin the spindle, means for holding the work eed mechanism out. of action during the quick advancing movement of the spindie, mcana for automaticall moving the holding meana to release the work feed mechanism, mcana for stopping the quick advancing mechanism, and a lever ada )ted to be moved by the operator, said lever mving two cam surfaces, one cam surface adapted to move the t uick advancing mechanism into action and the other can: surface adapted to move the work feed mechanism into action.

.ll. In a drilling machine' in combination a rotatable and lon Ifitudinally movable drill spindle, u quick at vancing mechanism and work feed mechanism for successively advancing thc spindle, means for starting the quick advancing mechaniam` moana 'foratopping the Vquick advancing mechanism, and

thc drivin I device, means for maintaining` the work ccd mechanism inactivo while the quick advancing mechanism ia in o ration, and mechanism controlled by the c utching uml nnclutching mechanism for throwing lli the work feed mechanism into action when the quick advancing,y mechanism ia un clutched from the drivin device.

3. In a drilling mac ine. the combination with a rotatable aml longitudinally movable drill spindle. of cuick advancing mcclmnimn and a work eed mechaniiim therefor, a driving device for the quick advancing mechanism', means for connecting .-aiid mechanism to and disconnectin it from the drivin device. a latch for maintaining the work ed mechanism inactive while the quick advancing mcclmniam ia in operation, and mechanism controlli l b v the connecting and diacnnnccting means for operating the latch to release the work feed mechanism.

.blflln a drilling machine. the 'combination with a rotatable und longitudinallytion with a rotatable and longitudinally movable drill spindle, of a quick advancing mechanism and a working feed mechanism therefor, a driving device for the quick ad- "ancing mechanism, a clutch element f or connecting the drivin device to and diaconnecting it from tic quick advancing mechanism, means for moving the clutc element. means for ho ding the work feed mechanism 'inactivewvhile the driving device ia clutched to the quick advancing' mechanism` nml mechanism operated by the clutch moving means to release the work feed mechanism.

21%. In a drilling machine; the combination with a rotatable and longitudinally movable drill spindle, of a quick advancing mcclmnimi nml u work fccd mechanism therefor, a driving device for the qnickuld- Gli ISO

vancing uicchanism. a chttch element for connecting tbc driving device to uml disconnectingit from the quick advancing mechanism, means for moving the clutch element, a hitch for holding the work feed mechanism inoperative while the driving device is clutched to the quick advaucin mechanism, and operatiii means for the atcli automatically control ed by the clutch moving means.

27. ln a drilling machine, e, ci nhination with a rotatable and lon iti inally movable tool spindle. of a work eed mech-Hi engages t anisni and a quick advanciu mechanism therefor. means for moving tie work feed mechanism into coierative relation with so as to drive the spindle, a latch for holding the work feed means against movement bv said means, and means for disengaging the latch from thc work feed mechanism to pci-mit the moving means to move the sinne into said coi'i ierative relation.

28. In a i rilling machine, the combination with a rotatable and lon itudinally movable tool spindle, of a work eed meehanisin aml a quick advancin mechanism therefor, means for moving ige work feed mechanism into eoii rative relation with so as to drive the spindle, a latch for hulding the work feed against movement by said means. and means for operiitin the latch', said means including a catch tiat detachably engages the hitch to disengage said hitch from the work feed mechanism and permit. it to be moved into said cooperative relation. and means for disengaging the latch atul catch.

2li. lu a drilling machine. the conihiiiation with a rotatable and longitudinally movable tool spindle. of a work feed mechanism. a quick advancin mechanism therefor, means for moving t ie work feed mechuuisni into cm'ipcrativc relation with so as to drive the spiiulle. uml means for holding said work feed mechanism inactive and i lcasiii it to permitnit to operate. said means inclut iiig two latches. one 0f which dctiicliably engages the work feeding mechanism, the other engaging the. first-mentioned hitch to discngagc it from the work feed mechanism. and means for inici-ating the second latch uml dscngaging it from tbc first hitch.

30. ln a drilling machine, the combination with a rotatable and longitudinally movable tool spindle, of a work feed mechanism. a quick advanciu v mechanism therefor, means for moving t ie work feed lnechanisin into cooperative relation with so ai to drive `the spindle, uml means .fnr. holding said uork feed mechanism inactive andrelcasin v it to permit it to operate. said mea'twe,

iuehn lng a hitch that detaelnibly engages the work feed uuarhanisl'n. a swinging iii'iii, another latch on the swinging arm that engages the iirst-ineutiomal hitch, means for swinging the arni, und a dciicc for operaiing the latch on thc arm to di-cngagc it from the tirst hitch.

ill. lu a drilling inachiue. the combination with a rotatable and longitudinally movable tool s iindlcff work feed mechanism. a quick ai vancing mechanism therefor, said work feed mechanism.including a worin wheel, and u worm movable iiito and out of coaction with the wheel. u support for the worm including an arm, a. s'pring for moving the support in one direction, a latch that ie arm to hold it against movement bv the spring. a swinging arm, a latch pivoted on the swin ing arm and detachably eugagin v the means contro led by the quick advancing mechanism for effecting the swingin movepath of movement of the hitch on thc swinging arm to o rate the same.

32. In a di'illing machine, the combination with a rotatable and longitudinallv movable tool spindle, of mechanism for e fectin a .working feed thereof, mechanism spindle, means for throwing the quick advancing mechanism into operation including a pivoted lever, and u latch for holding the work feed mechanism inactive while the quick advancing mechanism is in operation, said hitch being pivoted on an axis that is sub- .lstantially coincident with the axis of the ever.

'33. ln a drilling machine. the combination with a rotatable and longitudinallv naivalilc tool spindle, of naa-hanism for e fectiii r a working feed thereof, mechanism for e eeting a quick advance of the spindle, a pivot, means for throwing. the quick advance mechanism into operation, including u lever journalcd ou the iivot, uml a hitch for holding thc work -feei mechanism inactive while. the quick advance mechanism is in operation, said hitch being also jotirnaled on said pivot.

tion with a rotatable and longitudinali movable tool spindle, of mechanism for e fecting ii working feed thereof, mechanism for eti'ectiug a quick advance of the tool spindle. ine udinr a clutch, manually operated means for shifting the clutch to throw t'he quick advancing mechanism into o ration, means for locking the work eed mechanism out of operation, automatic means for moving the clutch to throw the quick advance mechanism out. of operation, and nicalis operated by said automatic means to release the work feed mechanism.

tlf. In a drilling machine, the combination with a rotatable and longitudinali movable tool spindle, of mechanism. for e fectiug a working feed thereof, mechanism for effecting u quick advance of the spindle,

rst mentioned latch,

meut of the arm, and a stop locatet in tbe- :l-l. In a drilling machine, the combina for e ecting a quick advance of the tool including a clutch. a clutch `'hit'tiugg device, manually operated means for operating the shifting dc\ icc to throw the quicl. nd\ unt-'ing mechanism into operation. autonmtic means operating on the clutch .shifting device to make the qniek advancing mw'lmnism inactive. means rfor holding the work feed mechanism inactive, and means operated by the clutch .shifting de\icc lor releasing the work feed mechanism.

titi. ln a drilling machine. the combilmtion with u rotatable uml longitmliually movable tool spindle. of mechanism for clfectin I a working feed thereof. mechanism for el ecting a quick advance ol' the s iindle including a clutch. a clutch shifting t eviee. manually qwrated means for operating the shifting device to throw the quick advance mechanism into operation. automatic means for operating the clutch shifting device to make the quick advance mechanism inactive. a latch detachabl engaging the work feed mechanism to bo d it inactive, aml means operated b the clutch shifting device for operating t te latch to release the work feed mechanism.

It?. ln a drilling machine, the combination with a rotatable and longitudinally movable tool spindle, of mechanism for effectin a workin feed thereof, inmlmnism for e t ting a qmck advance of the spindle, nu actuating device for the latter mechanism, a clutch element for connecting the actuating device to the quick advancing mechanism, n swinging arm for operating the clutch element,manually operated means for movin the arm in one direction, automatic mecmnism for eliccting the movement of the arm in the other direction, a latch for holding the work feed mechanism inactive and operating means l'or said latch actuated by the arm.

38. l'n a drilling machine, the combination with a rotatable and longitudinally movable tool spindle, of working feed meehanism therefor iucludin v a shiftable worm, a device. for autonmticallv moving thc` worm in one direction, a hitch for holding the worm against movement b v the device, quick advance tnechhlsm for the tool s iindle, au actuating device thcrefr. a shifta le clutch for connecting the actuating device to the nick advancing mechanism, a swinging arm or shifting the clutch. manually operated means engaging the arm to move the -ame in one direction. a swinging arm ha ving a latch that. detachably engages the tirst' mentioned latch, a connection between `-aid arm and the clutch shifting arm, and a lstop disposed in the path of movement of thc latch on the arm for operating the same.

39. lu a drilling machine. tlnI combination with a rotatable an'd longitudinally movable drill spindle, of a quick advancing.r mechanism and a work feed mechanism toes-accessive-ly advancing the spindle, means for starting the quick advancing mechlni means ftfholdiu v the work feed mechanic l out of com-tion t uriug the quick advlncin l movement ol' the spindle, means controll b v the quick advancing mechanism for releasing said holding. means, means for stoppingtln quick advam-iug mechanism, and l spring .separate from the holding means for moving tie work feed mechanism into uction when released from the holdin means. ttl. ln a drilling machine, the com iination aith a rotary aml rcciprm-atory drill s indle, of means for etl'ccting a working eed thereof, .said means being movable into and au of driving coaetion with the spindle, a quick return mechanism, a clutch member or connecting and disconnecting the quick return mechanism and the spindle. and means automatically operating with the working feed means on its movement out. of coaction with the spindle for moving the quick return mechanism and the spindle.

4l. ln a drillin r machine, the combination with a rotary an reciprocatory drill indle, of means for ctlecting a working eed thereof, a movable support for the workin feed means that carries the same into an ont of driving coaction with the spindle, a nick return mechanism, a clutch member or connecting the quick return mechanism and the spindle. and means connected to and movable with the support for moving the clutch member to a position to connect. the quick return mechanism nml the spindle when the working feed means moves out. of coat-tion with the spindle.

4L'. lu a drilling machine, the combination with a rotary nml reciprtwatory drill s indle, of means for ellccting a working eed thereof. a movable support for the working (eed means that. carries the saaie into and nick return mechanism, a clutch member or connecting and disconnecting the quick return mechanism uml the sxindle, means connected to and movable wit i the support. for moving the clutch member to a position to connect the quick return mechanism and the spindle when the working l'eetl means moves ont of com-tion with the spindle, a latch for holding the support with t te working feed means in driving coaction with the spindle. and 'means for automatically operating .he latch lo release. the sn )port und permit it to carry the working eed means out of coaction with the spindle.

lit. ln a drilling anu-bine. the combination with a rotary and reciprocatory drill spindlc. of a fccd shaft therefor. a .wringing snp port, working leed nti-am inclnding a gear mounted on llol .support and movable into and ont of conf-ting driving relation with thtt' d shaft, a latch for holding the supclutth member to a position to conneetjhe.

out of driving coat-tion ith the spindle, a

port lvitli tlie gear in such driving coaction, quick return mechanism including a device geared to the feed shaft, a driving member, a clutch for connecting and diaconnecting the driving member an tlie device, and actuat ,means for the clutch connected to the swinging su port and o rated thereby on its movemm to carry gr out of drivinfl'leeaetion with the feed ft.

44. a drilling combination of a rotatable and longitudinali! movable drill lpindle, a feed shaft. for rocating the spindle, a quick advancing m animi, a

wonlilieed mechanism, a niclr return mechiuiiem, automatic means or separately and 15,

succesiiively connecting said quick advancin work feed and quick return mechanisms witii the leed shaft, means for automatically determiiiin tlie extent of the movements of the spin e by iiaid mechanisms, and a device 20 driven by the feed shaft and carrying said A. O. Benn., E. Bann.. 

